SKU: 80480948383

Ford Big Block Crank Trigger Kit - 8644

$292.48 $324.98
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Description

Ford Big Block Crank Trigger Kit - 8644Overview: For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD Flying Magnet Crank Trigger system does exactly that by using four magnets embedded in an aluminum wheel. Although similar in appearance to other crank triggers, the MSD Flying Magnet design works on a different principle. Most crank triggers have a wheel, with steel studs sticking out,

Overview:

For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD Flying Magnet Crank Trigger system does exactly that by using four magnets embedded in an aluminum wheel. Although similar in appearance to other crank triggers, the MSD Flying Magnet design works on a different principle. Most crank triggers have a wheel, with steel studs sticking out, bolted to the harmonic balancer. As the crankshaft turns, the studs pass by a stationary magnetic pick-up, triggering the ignition. This pick-up can be triggered by other bolts, debris or even vibrations which will cause a loss of power or engine damage. The MSD Flying Magnet Crank Trigger uses four magnets secured in the aluminum trigger wheel that pass by a stationary non-magnetic pick-up to trigger the ignition. This ""flying magnet"" design produces accurate trigger signals and the non-magnetic pick-up cannot be false triggered. Each Flying Magnet Crank Trigger includes a two-piece mounting bracket for the non-magnetic pick-up that in most cases will work on either the passenger side or driver's side of the engine (the SB Chrysler and SB Ford brackets mount on only one side). The CNC-machined aluminum bracket securely holds the pick-up in place and is slotted to provide a wide range of timing adjustment. Spacers are included so you can mount the bracket on engines with standard motor mounts or engines with a .25"" motor plate. These systems will trigger MSD 6, 7 and 8 Series Ignitions and all MSD Timing Accessories.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1975 - 1996 Ford E-250 Econoline 4/8 V
    1977 - 1996 Ford F-250 4/8 V
    1975 - 1976 Mercury Montego 4/8 V
    1975 - 1991 Ford E-250 Econoline Club Wagon 4.36/8 V
    1975 - 1996 Ford E-350 Econoline 4/8 V
    1977 - 1997 Ford F-350 4/8 V
    1975 - 1996 Ford E-150 Econoline 4/8 V
    1975 - 1991 Ford E-250 Econoline Club Wagon 4/8 V
    1977 - 1996 Ford E-350 Econoline Club Wagon 4.36/8 V
    1975 - 1976 Ford F-350 4.05/8 V
    1975 - 1977 Ford F-500 4.05/8 V
    1975 - 1986 Ford LTD 4/8 V
    1975 - 1977 Ford Ranchero 4.36/8 V
    1977 - 1996 Ford E-350 Econoline Club Wagon 4/8 V
    1975 - 1996 Ford F-150 4/8 V
    1975 - 1996 Ford E-150 Econoline Club Wagon 4/8 V
    1975 - 1996 Ford F-250 4.36/8 V
    1975 - 1979 Ford F-150 4.36/8 V
    1975 - 1978 Ford LTD 4.36/8 V
    1975 - 1976 Ford F-150 4.05/8 V
    1975 - 1997 Ford F-350 4.36/8 V
    1975 - 1976 Mercury Cougar 4.36/8 V
    1980 Lincoln Continental 4/8 V
    1972 - 1979 Ford Ranchero 4/8 V
    1975 - 1983 Ford E-100 Econoline 4/8 V
    1975 - 1979 Ford F-100 4/8 V
    1975 - 1976 Ford F-250 4.05/8 V
    1975 - 1996 Ford E-350 Econoline 4.36/8 V
    1975 - 1976 Ford Torino 4/8 V
    1978 - 1986 Mercury Grand Marquis 4/8 V
    1997 Ford F-250 HD 4.36/8 V
    1978 - 1996 Ford Bronco 4/8 V
    1975 - 1977 Ford Custom 500 4/8 V
    1975 - 1976 Lincoln Mark IV /
    1975 - 1979 Mercury Cougar 4/8 V
    1975 - 1977 Ford Granada 4/8 V
    1975 - 1979 Lincoln Continental /
    1988 - 1991 Ford LTD Crown Victoria 4/8 V
    1975 - 1983 Ford E-100 Econoline Club Wagon 4/8 V
    1972 - 1974 Ford Ranchero U/K/8 V
    1975 - 1976 Ford Gran Torino 4/8 V
    1988 - 1997 Ford F Super Duty 4.36/8 V
    1978 - 1981 Mercury Marquis 4/8 V
    1975 - 1977 Mercury Marquis /
    1975 - 1980 Ford E-250 Econoline 4.36/8 V
    1975 - 1977 Mercury Monarch 4/8 V
    1977 - 1979 Ford Thunderbird 4/8 V
    1975 - 1976 Ford Custom 500 4.36/8 V
    1975 - 1976 Ford Elite 4.36/8 V
    1996 Ford Econoline Super Duty 4.36/8 V
    1975 - 1976 Ford Torino 4.36/8 V
    1975 - 1977 Mercury Grand Marquis /
    1977 - 1979 Lincoln Mark V /
    1988 - 1997 Ford F53 /
    1975 - 1976 Ford Elite 4/8 V
    1977 Lincoln Versailles 4/8 V
    1977 - 1979 Ford LTD II 4/8 V
    1978 Mercury Marquis 4.36/8 V
    1975 - 1976 Mercury Montego 4.36/8 V
    1975 - 1976 Ford Thunderbird /
    1975 - 1976 Ford F-100 4.05/8 V
    1975 - 1976 Ford Gran Torino 4.36/8 V
    1980 Lincoln Mark VI 4/8 V
    1978 Ford E-100 Econoline 4.36/8 V
    1995 Ford Mustang 4/8 V
    1978 Mercury Grand Marquis 4.36/8 V
    1997 Ford F-250 HD 4/8 V
    1996 Ford Econoline Super Duty 4/8 V
    1979 Ford F-100 4.36/8 V

    Specs:

    Brand MSD
    Color Red
    Diameter 7.25""
    Emission Code 4
    Make Ford
    Product Type Crank Trigger Kit
    Sensor Dimensions 3/4"" x 2.25""
    Sensor Type Non Magnetic
    Trigger Type 4X
    Warning California Proposition 65
    Warranty Limited 1 Year Warranty
    Wheel Width 3/8""
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 80480948383

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    4.5 ★★★★★
    Based on 923 reviews
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    Product Reviews
    B
    Verified Purchase
    Beverly White
    Boise, US
    ★★★★★ 5
    Dry mouth remedy
    I have been using these for a couple of years and they work great
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 10, 2026
    J
    Verified Purchase
    Jeff D.
    Omaha, US
    ★★★★★ 5
    Slim profile, stays anchored all night (Berry flavor is great!)
    Scent Name: Berry, Size: 100 Count, Scent Name: Berry, Size: 100 Count
    I rely on these nightly to combat dry mouth, and they deliver exactly what is promised. The adhesion mechanism is impressive—once placed against the gum, the disc stays securely anchored for a full 6–8 hours without shifting, allowing me to sleep without interruption. ​The profile is ideal; the discs are incredibly slim and unobtrusive, so you don't feel like you have a bulky object in your mouth while trying to fall asleep. Despite being so compact, they pack enough moisture to last until morning. The Berry flavor is mild and soothing, making it a perfect bedside companion. Highly recommended.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 11, 2026
    G
    Verified Purchase
    Gabrielle Grim
    New York, US
    ★★★★★ 5
    Excellent product for dry mouth
    Scent Name: Berry, Size: 100 Count
    If you are having trouble with dry mouth, especially while sleeping, this is definitely the product for you. I have severe dry mouth and have tried multiple things including hard candy (yes, I know not very smart) as well as different biotin products, the mouthwash, the spray and the gel, which all do work, but do not last for very long. These stay in place open the corner of your mouth, last for hours and truly work. I highly recommend it if you are having a dry mouth issue
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 5, 2026
    S
    Verified Purchase
    Sharon
    Battle Creek, US
    ★★★★★ 5
    Works great
    Scent Name: Berry, Size: 100 Count
    I have to use these for about 1/2 a year. I keep bronchitis and sinusitis from about Oct. to April every since I was a child. When I am suffering with these I can't breath through my nose, epically at night while sleeping and would wake up several times a night with dry mouth so bad ir was literally painful. My mom turned me on to these because she was using the with her CPAP. I sometimes have a bit of difficulty getting them to stay put but overall they are great. I have tried the OG, cinnamon, and berry. The OG have no real taste, but you wake up with a sweet taste in your mouth. I tried the cinnamon because I love cinnamon and didn't listen to the reviews stating how strong the flavor is, big regret, it's like putting two or three fireballs in your mouth, won't be making that mistake again. The berry ones are actually best in my opinion. They have a light berry flavor that isn't overpowering, isn't quite as sweet as the OG. Whichever one you choose you won't wake up in pain. I do suggest using only one at first as opposed to the two they recommend, unless you like waking up with your head on a water logged pillow. One generally gets me through the night unless my congestion is super bad, then I will sometimes have to use a 2nd one about 1/2 way through my night when I wake up for the bathroom and realize it's already completely dissolved.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 21, 2025
    K
    Verified Purchase
    Karen Strickholm
    Cuba, US
    ★★★★★ 5
    A Great Product!
    These tablets are inspired! I use them every night with my cpap. The back of each tablet has a coating that, when moistened, is easily glued to a back tooth to slowly dissolve while sleeping. Works like a charm! These would be good to use when speaking publicly, too - no more performance dry mouth. You really can't tell it's there once it's glued in. The minty flavor is there, but not overwhelming. I am never without my Xylimelts!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 18, 2025

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